RA/DEC (2000)
12:38:41.774 +07:36:37.68
189.6740593 +7.6104653
Type
SLSN-I
Redshift
0.1335
Discovery ReportClassification Report
Related AstroNotes: 2025-333, 2025-337
Reporting Group
ZTF
Discovering Data Source
ZTF
Discovery Date
2025-11-24 13:03:28.002
TNS AT
Y
Public
Y
Discovery Mag
18.8161
Filter
g-ZTF
Reporter/s
Nabeel Rehemtulla (CIERA, NU), Wynn Jacobson-Galán (Caltech), Theophile du Laz (Caltech) on behalf of ZTF
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025afcr - 2025-12-02 06:12:08 LT / SPRAT (ZTF)z=
▌Show H at z=vexp= km/s
▌Show He at z=vexp= km/s
▌Show He II at z=vexp= km/s
▌Show C II at z=vexp= km/s
▌Show C III at z=vexp= km/s
▌Show C IV at z=vexp= km/s
▌Show N II at z=vexp= km/s
▌Show N III at z=vexp= km/s
▌Show N IV at z=vexp= km/s
▌Show N V at z=vexp= km/s
▌Show O at z=vexp= km/s
▌Show [O I] at z=vexp= km/s
▌Show O II at z=vexp= km/s
▌Show [O II] at z=vexp= km/s
▌Show [O III] at z=vexp= km/s
▌Show O V at z=vexp= km/s
▌Show O VI at z=vexp= km/s
▌Show Na at z=vexp= km/s
▌Show Mg at z=vexp= km/s
▌Show Mg II at z=vexp= km/s
▌Show Si II at z=vexp= km/s
▌Show S II at z=vexp= km/s
▌Show Ca II at z=vexp= km/s
▌Show [Ca II] at z=vexp= km/s
▌Show Fe II at z=vexp= km/s
▌Show Fe III at z=vexp= km/s
▌Show Å at z=vexp= km/s
▌Show Å at z=vexp= km/s
▌Show Å at z=vexp= km/s
▌Show Å at z=vexp= km/s
▌Show Tellurics 
▌Show Galaxy lines at z=
▌Show WR-WN at z=vexp= km/s
▌Show WR-WC/O at z=vexp= km/s
   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)

Light curves

 ▌GOTO-N_GOTO-2_L
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌ATLAS-MLO_ATLAS-01_orange
 ▌ATLAS-HKO_ATLAS-02_orange
   
Pointer position (MJD, Mag, Abs.Mag): (0.00, 0.00, 0.00)
Spectra
 ID Obs-date (UT) Tel / Inst Exp-Time Observer/s Reducer/s Group Spectrum ascii file Spectrum fits file Spec. Type Assoc. Groups End prop. period Remarks
22497 2025-12-02 06:12:08 LT / SPRAT Jacob Wise, Daniel Perley, Aleksandra Bochenek, Zoe McGrath, K-Ryan Hinds, Anna Ho Jacob Wise ZTF tns_2025afcr_2025-12-02_06-12-08.131_LT_SPRAT_ZTF.spec Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-N_GOTO-2 2025-06-26 21:49:36 - 2025-11-29 05:25:08 2460853.409448 - 2461008.725791 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
534860 2025-11-29 05:25:08 2461008.725791 18.43 0.07 ABMag L-GOTO GOTO-N_GOTO-2 180
534859 2025-06-26 21:49:36 2460853.409448 18.6 ABMag L-GOTO GOTO-N_GOTO-2 180 [Last non detection]
r-ZTF P48_ZTF-Cam 2025-10-31 13:17:01 - 2025-10-31 13:17:01 2460980.0534838 - 2460980.0534838 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
534510 2025-10-31 13:17:01 2460980.0534838 17.7626 ABMag r-ZTF P48_ZTF-Cam [Last non detection]
g-ZTF P48_ZTF-Cam 2025-11-24 13:03:28 - 2025-11-28 12:59:24 2461004.0440741 - 2461008.04125 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
534512 2025-11-28 12:59:24 2461008.04125 18.2667 0.0699169 ABMag g-ZTF P48_ZTF-Cam
534511 2025-11-24 13:03:28 2461004.0440741 18.8161 0.108013 ABMag g-ZTF P48_ZTF-Cam
orange-ATLAS ATLAS-MLO_ATLAS-01 2025-12-01 14:48:28 - 2025-12-01 14:48:28 2461011.11699 - 2461011.11699 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
535824 2025-12-01 14:48:28 2461011.11699 18.426 0.154 19.27 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot
orange-ATLAS ATLAS-HKO_ATLAS-02 2025-08-09 06:18:27 - 2025-08-09 06:18:27 2460896.76281 - 2460896.76281 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
535823 2025-08-09 06:18:27 2460896.76281 17.81 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 Robot [Last non detection]
AT Reports
ID Time received (UT) Sender Reporter/s Reporting group Disc. Data Source RA DEC Discovery date (UT) Discovery Mag. Filter Related files AT Type Host name Internal name Assoc. Groups End prop. period Remarks ADS Bibcode Unreal Auto classification
279255 2025-12-02 20:55:40 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland (IfA et al. ATLAS ATLAS 12:38:41.781 +07:36:37.50 2025-12-01 14:48:27.936 18.426 orange-ATLAS PSN ATLAS25phg ATLAS N
278745 2025-11-29 21:13:26 GOTO_bot D. O'Neill,K. Ackley,M. Dyer et al. GOTO GOTO 12:38:41.780 +07:36:37.44 2025-11-29 05:25:08.256 18.43 L-GOTO Other GOTO25kqg GOTO N
278583 2025-11-28 13:08:22 BTSbot_bot Nabeel Rehemtulla (CIERA,NU),Wynn Jacobson-Galán (Caltech) et al. ZTF ZTF 12:38:41.774 +07:36:37.68 2025-11-24 13:03:28.002 18.8161 g-ZTF PSN ZTF25acemaph ZTF Bright (m_peak <= 18.5) transient candidate identified autonomously by BTSbot (Rehemtulla et al. 2024; arXiv:2401.15167). 2025TNSTR4751....1R N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
22496 2025-12-02 13:12:37 Jacob Wise Jacob Wise (LJMU), Daniel Perley (LJMU), Aleksandra Bochenek (LJMU), Zoe McGrath (LJMU), K-Ryan Hinds (Caltech), Anna Ho (Cornell), Ragnhild Lunnan (OKC), Steve Schulze (CIERA) ZTF SLSN-I 0.1335 1 1 ZTF Spectrum is well-fit to pre-peak template spectra from the previously classified SLSN-I events 2017egm, 2010gx and Gaia16apd. Redshift of z = 0.1335 from host emission lines. Classification performed using Next Generation Superfit (NGSF, Goldwasser et al. 2022). 2025TNSCR4814....1W
Related files
File Comments Last Modified (UT) Modified By
tns_2025afcr_atrep_22496_ZTF.pdf NGSF fits 2025-12-02 13:12:37 Jacob Wise
Spectra
ID Obs-date (UT) Tel / Inst Exp-Time Observer/s Reducer/s Group Spectrum ascii file Spectrum fits file Spec. Type Assoc. Groups End prop. period Remarks
22497 2025-12-02 06:12:08 LT / SPRAT Jacob Wise, Daniel Perley, Aleksandra Bochenek, Zoe McGrath, K-Ryan Hinds, Anna Ho Jacob Wise ZTF tns_2025afcr_2025-12-02_06-12-08.131_LT_SPRAT_ZTF.spec Object

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